Lots of kworkers

[Volker Wysk]

Hi

Every few days, I get a lot of kworkers (some 50) in the process list. The hard disk clatters all the time. From the web I've found that those are kernel threads. Since I have an SSD (apart from the harddisk, set up as a cache for the HD), this doesn't make my system unresponsive. But still... 

What's going on here? And how to get rid of all  those kworkers?

Bye
Volker